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Finding the Fourth Proportional to 14,709.92, 22,064.86 and 6,388.88

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Solution

The fourth proportional to 14,709.92, 22,064.86 and 6,388.88 is: 9,583.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,709.92 : 22,064.86 = 6,388.88 : x
  2. Step 2: Convert to fraction form
    14,709.92/22,064.86 = 6,388.88/x
  3. Step 3: Cross multiply
    14,709.92x = 22,064.86 × 6,388.88
  4. Step 4: Simplify right side
    14,709.92x = 140,969,742.76
  5. Step 5: Solve for x
    x = 140,969,742.76/14,709.92
  6. Step 6: Final answer
    x = 9,583.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.